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Browse by Category: Main > Communications
Class Information
Number: 398/186
Name: Optical communications > Transmitter > Having particular modulation > Intensity modulation
Description: Subject matter in which modulation is produced by modulating the amplitude o f a light wave serving as a carrier by another wave serving as modulating signal.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8705970 Method for data processing in an optical network, optical network component and communication system Apr. 22, 2014
8676060 Quadrature amplitude modulation signal generating device Mar. 18, 2014
8655177 Optical transmitter Feb. 18, 2014
RE44647 Directly modulated laser optical transmission system with phase modulation Dec. 17, 2013
8600235 Network with sourceless clients Dec. 3, 2013
8594513 Time delay adjustment device and method Nov. 26, 2013
8588621 System and method for generating multilevel coded optical signals Nov. 19, 2013
8582979 Method and arrangement for transmitting an optical OFDM-signal Nov. 12, 2013
8571416 Dual polarization transceiver Oct. 29, 2013
8571418 High resolution optical waveform shaping device having phase shift compensation associated with optical intensity modulation Oct. 29, 2013
8543009 Method and apparatus for synthesizing ultra-wide bandwidth waveforms Sep. 24, 2013
8494376 Method and apparatus for testing transmitters in optical fiber networks Jul. 23, 2013
8488978 Optical signal processor Jul. 16, 2013
8463137 System and method for transmissions via RF over glass Jun. 11, 2013
8463138 Multi-value optical transmitter Jun. 11, 2013
8428472 High-speed transmission system for optical channels Apr. 23, 2013
8391724 Optical modulator, optical transmission device, and bias adjusting method Mar. 5, 2013
8380084 Polarization multiplexing and transmitting apparatus Feb. 19, 2013
8380085 High-speed multi-level electronic signal generation for optical communications Feb. 19, 2013
8326158 Device and method for transmitting optical data signals Dec. 4, 2012
8320775 Method and device for bias control of a laser MZ modulator Nov. 27, 2012
8306433 Optical modulation signal generating device and optical modulation signal generating method Nov. 6, 2012
8290375 Modulation based optical spectrum analyzer Oct. 16, 2012
8270846 Amplification circuit, differential amplification circuit, and optical transmitter Sep. 18, 2012
8270783 Silicon integrated photonic optical parametric amplifier oscillator and wavelength converter Sep. 18, 2012
8265489 Optical field transmitter and optical field transmission system Sep. 11, 2012
8249460 Apparatus and method for generating an RF signal Aug. 21, 2012
8238757 Method and apparatus for generating optical duobinary signals with enhanced receiver sensitivity and spectral efficiency Aug. 7, 2012
8238758 Three-arm DQPSK modulator Aug. 7, 2012
8213798 Optical transmission apparatus, wavelength division multiplexing optical communication system and optical transmission method Jul. 3, 2012
8208817 High-speed optical modulation using a quantum-well modulator Jun. 26, 2012
8204386 Chirped laser with passive filter element for differential phase shift keying generation Jun. 19, 2012
8190032 Optical signal processing apparatus May. 29, 2012
8165472 Apparatus for transmitting and receiving a signal in a visible light communication system Apr. 24, 2012
8165476 Optical phase locked loop Apr. 24, 2012
8155534 Optical modulator for higher-order modulation Apr. 10, 2012
8155533 Optical transmitting apparatus and optical communication system Apr. 10, 2012
8145067 Optical transmitter Mar. 27, 2012
8139953 Signal transmission device, signal reception device, test module, and semiconductor chip Mar. 20, 2012
8135287 100 Gbit/s OFDM optical signal generation Mar. 13, 2012
8121492 Optical transmitting apparatus Feb. 21, 2012
8116635 Polarization multiplexing and transmitting apparatus Feb. 14, 2012
8098998 Optical transmitter Jan. 17, 2012
8059968 Modulation device for generating optical signal with quadruple frequency and method thereof Nov. 15, 2011
8055137 Phase coded non-return-to-zero optical transmitter Nov. 8, 2011
8041157 Silicon integrated photonic optical parametric amplifier oscillator and wavelength converter Oct. 18, 2011
8041219 Optical network element with Brillouin effect colorless wavelength shift Oct. 18, 2011
8032035 Light detecting apparatus and output light intensity controller Oct. 4, 2011
8027587 Integrated optic vector-matrix multiplier Sep. 27, 2011
8023775 Super flat optical frequency comb signal generator Sep. 20, 2011

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